我正在尝试更新hibernate中的对象，但我不明白为什么它没有在db中更新。有人可以帮忙吗？
控制器类
package com.petclinic.controller;
import com.petclinic.ClinicService;
import com.petclinic.Owner;
@Controller
@RequestMapping("/owners/{ownerId}/edit")
@SessionAttributes({"owner"})
public class EditOwnerForm {
private final ClinicService clinicService;
@Autowired
public EditOwnerForm(ClinicService clinicService) {
this.clinicService = clinicService;
}
@InitBinder
public void setAllowedFields(WebDataBinder dataBinder) {
dataBinder.setDisallowedFields("id");
}
//Mapping for GET Request
@RequestMapping(method = RequestMethod.GET)
public String setupForm(@PathVariable("ownerId") int ownerId, Model model) {
Owner owner = this.clinicService.loadOwner(ownerId);
model.addAttribute(owner);
model.addAttribute("action", "editowner");
return "owners/form";
}
//Mapping for POST Request
@RequestMapping(method = RequestMethod.POST)
public String processSubmit(@ModelAttribute Owner owner, /*BindingResult result,*/ SessionStatus status) {
System.out.println(owner.toString());
System.out.println("Inside EditOwner processSubmit method");
this.clinicService.editOwner(owner);
status.setComplete();
return "redirect:/forms/owners/" + owner.getId();
}
}
DAO课程
@Transactional
public void editOwner(Owner owner) {
System.out.println("Inside editOwner method" + owner.getCity());
sessionFactory.getCurrentSession().update(owner);
}
我正在尝试更新所有者的城市，但我没有得到更新。 这是我在控制台中得到的。在editOwner方法中，我得到了所有者的城市，所以我相信这个值是正确传递的。这与该方法有关。我尝试使用update，merge，saveOrUpdate，但似乎没有任何工作。
`Inside Welcome Controller
/forms
Delivering the owner search page
owner's name searched :
Hibernate: select owner0_.ID as ID0_, owner0_.FIRST_NAME as FIRST2_0_, owner0_.LAST_Name as LAST3_0_, owner0_.ADDRESS as ADDRESS0_, owner0_.CITY as CITY0_, owner0_.TELEPHONE as TELEPHONE0_ from OWNERS owner0_ where owner0_.LAST_Name like ?
FindOwner result from db [[Owner@3f305 id = 1, new = false, lastName = 'Franklin', firstName = 'George', address = '110 W. Liberty St.', city = 'Madison', telephone = '6085551023'], [Owner@1a5214b id = 2, new = false, lastName = 'Davis', firstName = 'Betty', address = '638 Cardinal Ave.', city = 'Sun Prairie', telephone = '6085551749'], [Owner@2ccaf3 id = 3, new = false, lastName = 'Rodriquez', firstName = 'Eduardo', address = '2693 Commerce St.', city = 'McFarland', telephone = '6085558763'], [Owner@c0290c id = 4, new = false, lastName = 'Davis', firstName = 'Harold', address = '563 Friendly St.', city = 'Windsor', telephone = '6085553198'], [Owner@1c6e8c1 id = 5, new = false, lastName = 'McTavish', firstName = 'Peter', address = '2387 S. Fair Way', city = 'Madison', telephone = '6085552765'], [Owner@1daee61 id = 6, new = false, lastName = 'Coleman', firstName = 'Jean', address = '105 N. Lake St.', city = 'Monona', telephone = '6085552654'], [Owner@58526a id = 7, new = false, lastName = 'Black', firstName = 'Jeff', address = '1450 Oak Blvd.', city = 'Monona', telephone = '6085555387'], [Owner@8ad65b id = 8, new = false, lastName = 'Escobito', firstName = 'Maria', address = '345 Maple St.', city = 'Madison', telephone = '6085557683'], [Owner@ff1cc0 id = 9, new = false, lastName = 'Schroeder', firstName = 'David', address = '2749 Blackhawk Trail', city = 'Madison', telephone = '6085559435'], [Owner@b89c6e id = 10, new = false, lastName = 'Estaban', firstName = 'Carlos', address = '2335 Independence La.', city = 'Waunakee', telephone = '6085555487'], [Owner@262743 id = 11, new = false, lastName = 'sarawagi', firstName = 'shivang', address = 'whitefield', city = 'bangalore', telephone = '12345'], [Owner@dbc09c id = 12, new = false, lastName = 'Hood', firstName = 'Robin', address = 'Atlanta', city = 'Newyork', telephone = '0989890829'], [Owner@142464f id = 13, new = false, lastName = 'Hearty', firstName = 'Hale', address = 'taiwan', city = 'Atlanta', telephone = '8967867868']]
Multiple Owners found
Returning owners/list
Hibernate: select owner0_.ID as ID0_0_, owner0_.FIRST_NAME as FIRST2_0_0_, owner0_.LAST_Name as LAST3_0_0_, owner0_.ADDRESS as ADDRESS0_0_, owner0_.CITY as CITY0_0_, owner0_.TELEPHONE as TELEPHONE0_0_ from OWNERS owner0_ where owner0_.ID=?
Hibernate: select owner0_.ID as ID0_0_, owner0_.FIRST_NAME as FIRST2_0_0_, owner0_.LAST_Name as LAST3_0_0_, owner0_.ADDRESS as ADDRESS0_0_, owner0_.CITY as CITY0_0_, owner0_.TELEPHONE as TELEPHONE0_0_ from OWNERS owner0_ where owner0_.ID=?
[Owner@1df63f9 id = 8, new = false, lastName = 'Escobito', firstName = 'Maria', address = '345 Maple St.', city = 'Mumbai', telephone = '6085557683']
Inside EditOwner processSubmit method
Inside editOwner method Mumbai
Hibernate: select owner0_.ID as ID0_0_, owner0_.FIRST_NAME as FIRST2_0_0_, owner0_.LAST_Name as LAST3_0_0_, owner0_.ADDRESS as ADDRESS0_0_, owner0_.CITY as CITY0_0_, owner0_.TELEPHONE as TELEPHONE0_0_ from OWNERS owner0_ where owner0_.ID=?
`
DAO类的代码
package com.petclinic.hibernate;
import java.util.Collection;
import org.hibernate.SessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;
import org.springframework.transaction.annotation.Transactional;
import com.petclinic.Clinic;
import com.petclinic.Owner;
* <p>Note that transactions are declared with annotations and that some methods
* contain "readOnly = true" which is an optimization that is particularly
* valuable when using Hibernate (to suppress unnecessary flush attempts for
* read-only operations).
@Repository
@Transactional
//HibernateClinic behaves as a DaoImpl/Repository class
public class HibernateClinic implements Clinic {
private SessionFactory sessionFactory;
@Autowired
public HibernateClinic(SessionFactory sessionFactory) {
this.sessionFactory = sessionFactory;
}
@Transactional(readOnly = true)
@SuppressWarnings("unchecked")
public Collection<Owner> findOwners(String lastName) {
return sessionFactory.getCurrentSession().createQuery("from Owner owner where owner.lastName like :lastName")
.setString("lastName", lastName + "%").list();
}
@Transactional(readOnly = true)
public Owner loadOwner(int id) {
return (Owner) sessionFactory.getCurrentSession().load(Owner.class, id);
}
public void storeOwner(Owner owner) {
//A transient object without an id will always be saved by hibernate's save() or persist() method
sessionFactory.getCurrentSession().save(owner);
}
@Transactional
public void editOwner(Owner owner) {
//A transient object without an id will always be saved by hibernate's save() or persist() method
System.out.println("Inside editOwner method" + owner.getCity());
sessionFactory.getCurrentSession().update(owner);
}
}
的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd">
<display-name>PetClinic</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/applicationContext.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/forms/*</url-pattern>
</servlet-mapping>
<filter>
<filter-name>hibernateFilter</filter-name>
<filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
<init-param>
<param-name>sessionFactoryBeanName</param-name>
<param-value>sessionFactory</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>hibernateFilter</filter-name>
<url-pattern>/forms/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
调度-servlet.xml中
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:component-scan base-package="com.petclinic"/>
<bean id="messageSource" class="org.springframework.context.support.ResourceBundleMessageSource"
p:basename="messages"/>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/view/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
的applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd">
<context:annotation-config />
<!-- <context:property-placeholder> XML element automatically registers a new PropertyPlaceholderConfigurer
bean in the Spring Context. -->
<context:property-placeholder location="classpath:database.properties" />
<!-- enable the configuration of transactional behavior based on annotations -->
<tx:annotation-driven transaction-manager="hibernateTransactionManager"/>
<!-- Creating DataSource -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${database.driver}" />
<property name="url" value="${database.url}" />
<property name="username" value="${database.user}" />
<property name="password" value="${database.password}" />
</bean>
<!-- To persist the object to database, the instance of SessionFactory interface is created.
SessionFactory is a singleton instance which implements Factory design pattern.
SessionFactory loads hibernate.cfg.xml and with the help of TransactionFactory and ConnectionProvider
implements all the configuration settings on a database. -->
<!-- Configuring SessionFactory -->
<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="annotatedClasses">
<list>
<value>com.petclinic.Owner</value>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">${hibernate.dialect}</prop>
<prop key="hibernate.show_sql">${hibernate.show_sql}</prop>
<prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
</props>
</property>
</bean>
<!-- Configuring Hibernate Transaction Manager -->
<bean id="hibernateTransactionManager"
class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
</beans>
答案 0 :(得分：0)
放置
<context:component-scan base-package="com.petclinic"/>
在applicationContext.xml中。
答案 1 :(得分：0)
我相信我发现了问题。我正在使用带有HibernateTransaction Manager的OpenSessionInView过滤器。默认情况下，此过滤器不会刷新Hibernate会话，刷新模式设置为FlushMode.NEVER。它假定与关注刷新的服务层事务结合使用：活动事务管理器将在读写事务期间临时将刷新模式更改为FlushMode.AUTO。我不知道为什么Hibernate事务管理器不会刷新会话。所以我在更新方法＆amp;之后添加了getCurrentSession.flush()有效。有什么意见吗？
我甚至将OSIV Filter的FlushMode配置为commit / Auto＆amp;检查，它没有工作，所以不得不求助于手动刷新会话。